La description

Ranges from 2500 psi (170 bar) to 12000 psi (827 bar) Rated to 750°F (400°C) Two length options Low installation and maintenance Stainless-steel body and Inconel diaphragm (disk)
Rupture disks, also known as burst plugs or soft plugs, are used for emergency pressure relief of an extruder. They are designed to instantaneously rupture at a specific pressure. This provides reliable relief in applications where rapid pressure buildup can occur, protecting both personnel and equipment. For maximum life, the recommended pressure rating is >=1.4 times normal operating pressure. Do not exceed the high-pressure specification.''